Engine-truck.



PATENQTED SEPT. 4, 1906.

v No. 830,274.

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Inventor: W Thomas E.Ada*ms,

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No- 830,274. I PATENTED SEPT. 4, 1906. T. E. ADAMS.

ENGINE TRUCK.

APPLICATION FILED APR. 7, 1906.

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' PATBNTED SEPT. 4, 1906.

T. B. ADAMS. ENGINE TRUCK.

APPLICATION FILED APR. 7, 1906.

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Witnassae lnuaribor: T E. Ad. 'X QY by 2321; @3225 Atty's.

UNITED STATES PATENT OFFICE.

THOMAS E. ADAMS, OF PINE BLUFF, A'R-KA NSAS, ASSIHNOR ()F ONE-HALF TOCHARLES H. SEABROOK, ()F PINE BLUFF, AhhZ-XNSAS.

ENGINE-TRUCK.

Specification of Letters Patent.

Patented Sept. 4, 1906.

Application filed April 7,1906. Serial No. 310,435.

To (ZZZ whom it may norm/2272 Be it known that I, Tnouas E. ADAMS, acitizen of the United States, residing at Pine Bluff. Arkansas, haveinvented a certain new and useful Im rovement in Engine-Trucks, of whichthe fo lowing is a full, clear, and exact description, such as willenable others skilled in the art to which it appertains to make and usethe same, reference being had to tne accompanying drawings, forming partof this specification, in which Figure 1 is a plan view of a swingingcenter-bearing engine-truck embodying the features of my invention. Fig.2 is a side elevation thereof. Fig. 3 is an enlarged view taken onapproximately the line 3 3 of Fig. 1. Fig. 4 is a detail view taken onthe line 4 4 of Fig. 3. Fig. 5 is a plan view of a rigid centerbearingengine-truck embodying the features of my invention, and Fig. 6 is aside elevation of the truck shown iii Fig. 5.

This invention relates to engine trucks; and one object of my inventionis to provide a cast-steel engine-truck that can be manufactured at amuch lower cost than the trucks heretofore in use and which will be morerigid I and last much longer than said trucks.

In the truck herein shown, which represents the preferred embodiment ofmyiinvention, the pedestals and also the spring-seats are cast integralwith the side frames of the truck. The side frames are provided on theiru per faces with integral lugs between which tfi e center-bearing frameis confined, and said center-bearing frame is rovided with integralflanges that engage t e inner faces of the side frames of the.truek andare connected thereto by rivets orl a? s, the ends of the center-bearingframe being also connected to the upper faces of the side frames bysuitable fastening devices. The center-bearing frame, whether it be fora rigid center-bearing or a swing center-bearing, is formed in onepiece, and as it is confined between the integra lugs on the side framesof the truck and is provided with depending flanges which engage theinner faces of said side. frames it will be impossible for said framesand the pedestals to spring inwardly, as was often the case with thetrucks heretofore in use.

Furthermore, the lugs on the side frames between which thecenter-bearing frame is confined remove the strain from theconnecting-rivets and revcnt the same from being sheared off or oosenedBy forming the pedestals and spring-seats integral with the side framesthere is nopossibility of said parts working loose, and the cost ofmanufacturing the same. is reduced greatly, due to the fact that nomachining or planing down of cooperative parts is necessar as would berequired if the pedestals am spring-seats were formed separate from theside frames.

Referring to the drawings, 1 designates the side frames of a truck,having s ring-seats 2 and pedestals 3 of substantial channel shapeformed integral therewith. Jugs 4 are formed on the 11 per faces of therails of the side frames, and a one-piece center-bearing ame 5 isconfined between said lugs, sa d center-bearing frame being providedwith deiendinq flanges 6, which engage the inner faces ofihe rails ofthe side frames 1 and are connected thereto by rivets7. The end portionsof the center-bearing frame comprise continuous pieces 8, which rest onthe u per faces'of the rails of the side frames an are connected theretoby rivets 9, so that it is impossible for the side frames to springinwardly, and there is no liability of the .connectin -rivets beingsheared off .or loosened,

as the Tugs 4 relieve the same from the strains due to starting andstopping. Bars 10 are connected to the lower ends of the pedestals ofeach side frame by bolts 11, and these bars are braced by cross-pieces12, to which they are connected by bolts .13.

In Figs. 1, 2, and 3 I have shown the form of eentor-lwaring frame whichI prefer to use for a swing center-bearing, and in this form the crossmembers 14, which are formed integral with the (out inuous )ieecs 8 ofthe frame, are provided with steel bushings 15, that receive the pins16, which are emploved for carrying the swinging luingers 17, to whichthe cenler-lwaring casting I8 is connected. By )roviding thecenterdiearing frame with steel bushings to receive the pins 16 thebushings can be replaced by new ones when they become worn, and thusobviate the necessity of using an entire new center-bearing frame.

, is claimed as new, and

which are connected to Preferably I provide the center-bearin frame withribs 19, which act as an ad' itional strengthening means. 1 t

In Figs. 5 and 6 I have shown an-enginetruckdraving a rigidcenter-bearing, the center-bearing casting 18 being provided withcontinuous end pieces 8 and with flanges 6, the rails of the side frames1 in the same manner as described for connecting the center-bearingframe and side frames in the form shown in Figs. 1, 2, and 3..

Having thus described the invention, What desired to be secured byLetters Patent, is

1. An engine-truck consisting of cast-steel side frames provided withintegral pedestals,

the to members of said side frames being forme straight and each beingprovided with a pair o,f upwardly-projecting lugs, a cast center-bearingframe resting" on the upper faces of the top members of the side framesarid being provided with depending flanges "which contact with the innerfaces of said top members. and fastening devices passing through the endportions ofijthe center-bearing frame and the top members of the sideframes; substantially as described.

2. An engine-truck havin side frames, a frame for a swingingcenterearing consisting of continuous end members which rest on theupper edges of the side frames, cross formed integral with saidcontinuflanges depending from members ous end -n1embers,

said end members, and contacting with the' inner faces of the sideframes, lugs carried by said side frames and engaging the ends of saidcontinuous end members, and fastening devices connecting said endmembers and their depending flanges to the side frames; substantially asdescribed.

In testimony whereofv I hereunto affix my signature, in the presence oftwo witnesses, this 5thday of April, 1906.

'rnoMAs E. ADAMS. WitnesSesz j p ER. CORNWALL,

Gannon BAKEWELL.

All

